Home / 13,019.58-19,529.48-3,158.87

Finding the Fourth Proportional to 13,019.58, 19,529.48 and 3,158.87

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Solution

The fourth proportional to 13,019.58, 19,529.48 and 3,158.87 is: 4,738.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.58 : 19,529.48 = 3,158.87 : x
  2. Step 2: Convert to fraction form
    13,019.58/19,529.48 = 3,158.87/x
  3. Step 3: Cross multiply
    13,019.58x = 19,529.48 × 3,158.87
  4. Step 4: Simplify right side
    13,019.58x = 61,690,998.74
  5. Step 5: Solve for x
    x = 61,690,998.74/13,019.58
  6. Step 6: Final answer
    x = 4,738.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.